Capacitive touch screen and single-layer wiring electrode array

Abstract

Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to a single-layer wiring electrode array. The invention also relates to a capacitive touch screen composed of a single-layer wiring electrode array. Background technique [0002] Multi-touch technology is radiating from smart phones to the entire consumer electronics industry, including low-end mobile phones, game consoles, media players, navigators, e-readers, tablet computers, etc. [0003] Capacitive touch screens work by using the current induction of the human body. A capacitive touch screen is usually a four-layer composite glass screen. The inner surface and interlayer of the glass screen are coated with a layer of transparent conductive film (ITO), the outermost layer is a thin layer of silica glass protective layer, and the inner and outer layers of ITO are respectively Strips are etched along two mutually perpendicular axes to form a grid (sensing capacit...

AI Technical Summary

Problems solved by technology

For conductive lines of this shape, when the substrate and the LCD panel are bonded to each other, there will be obvious colored stripes, which will have a significant impact on the light transmittance, linearity and display effect, and cannot obtain stable performance.

[0006] The preparation process using two layers of ITO film obviously increases the complexity of the preparation process and increases the process cost, and makes the pass rate decrease

[0007] Therefore, it is currently popular to use a single-layer ITO film, but it is necessary to bridge between the electrodes during the preparation process. The bridge method will easily cause fracture problems due to the large difference between the thickness of the insulating layer and the thickness of the ITO or metal film.

When the capacitive touch screen is attached to the LCD, because the electrode array uses horizontal and / or vertical electrode wires, the LCD will display colorful images, similar to the rainbow phenomenon, which will affect the human eye and the image display effect.

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